South Korea, an East Asian nation on the southern half of the Korean Peninsula, shares one of the world’s most heavily militarized borders with North KoreaSouth Korea, an East Asian nation on the southern half of the Korean Peninsula, shares one of the world’s most heavily militarized borders with North KoreavvvSouth Korea, an East Asian nation on the southern half of the Korean Peninsula, shares one of the world’s most heavily militarized borders with North Korea